I would love more information from you, because that would determine the advice I would give. If you only have a little weight to lose and have not struggled for a while with this, I am sure that someone else on this forum will answer very well.
Diets only work for 5% of people. You may be one it does work for, but for most of us, the overweight problem goes a lot deeper, and if this is true for you too, you may be an overeater or a food addict. This would be true for you if you have struggled with your weight for a while, and have tried diets and just put the weight back on, and perhaps even more.
If this is the case, you need to address the root cause of the problem, which is the way you think about food.
There is an excellent online weight loss program called "Get Thin for Good" that helps step by step with this - it's targeted towards food addicts and overeaters and may be able to help you too.